Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/49712
Título: Isobaric vapor-liquid equilibria and excess quantities for binary mixtures of an ethyl ester + tert-butanol and a new approach to VLE data processing
Autores/as: Ortega, Juan 
Espiau, Fernando 
Postigo, Miguel
Clasificación UNESCO: 330303 Procesos químicos
Palabras clave: 101.32 Kpa
Ethanoate
Methanoate
Densities
Volumes, et al.
Fecha de publicación: 2003
Publicación seriada: Journal of Chemical & Engineering Data 
Conferencia: 9th Asian Pacific Confederation of Chemical Engineering Congress (APCChE 2002) 
Resumen: This paper presents the experimental excess properties HmE and VmE obtained at different temperatures and the vapor-liquid equilibrium values at 101.32 kPa for four binary mixtures composed of four ethyl esters (methanoate to butanoate) and tert-butyl alcohol. A point-to-point test applied to the equilibrium values indicated that the systems studied were consistent. The binary mixture ethyl ethanoate + tert-butyl alcohol exhibits an azeotropic point at xaz = 0.832 and T = 349.59 K. All values were correlated using a new equation with temperature-dependent coefficients fitting simultaneously the vapor-liquid equilibria and HmE values. Good fits were obtained in all cases. Application of a modified version of the UNIFAC model to the mixtures containing a tertiary alkanol yielded rather poor estimates.
URI: http://hdl.handle.net/10553/49712
ISSN: 0021-9568
DOI: 10.1021/je0202073
Fuente: Journal of Chemical and Engineering Data [ISSN 0021-9568], v. 48 (4), p. 916-924
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